Archive for the ‘Heat Pumps’ Category

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Springfield HVAC Tip: SEER vs. HSPF

Monday, April 30th, 2012

When it comes to heat pumps, there are two different ratings you’ll often see – the SEER and the HSPF. So, what does each of them mean and which rating is more important when purchasing your new heat pump in Springfield? Here are a few things to consider:

SEER

The acronym SEER is short for “seasonal energy efficiency rating” and is used most commonly to measure air conditioner efficiency or in this case, the cooling capacity of your heat pump.

 HSPF

The HSPF is short for “heating seasonal performance factor” and is a measurement of how efficient the heat pump is in producing heat during the cooler months of the year.

 The Difference Between the Two

Every heat pump will have both of these ratings, allowing you to see how efficient each is. This is important because you need to know for certain how well your heat pump will perform under certain situations – both in the winter and summer.

However, if you live in a colder climate where the summer rarely calls for air conditioner, your focus should be on the HSPF first. And if you live in a warmer climate where your heating needs are minimal, the SEER is most important. Another thing to consider is your supplemental heat. If the cost of your supplemental heating system is high, you’ll want an HSPF that is as low as possible to balance it out.

 Choosing an Efficient Heat Pump

Heat pump efficiency directly impacts the price of the device you purchase but is almost always worth the difference. The key is to find a device that provides what you need based on where you live. Keep in mind as well that, like most HVAC upgrades, you won’t immediately recoup the cost of the device in your energy savings, so if you plan on moving soon, you should purchase a more affordable device now and upgrade later.

Purchasing a heat pump is an important step in making your home more energy efficient. If you are unsure which rating you need or how to analyze their meanings, contact a Springfield heat pump professional, like Cool It Heating & Air Conditioning, to learn more.

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Springfield HVAC Tip: Why Do Heat Pumps Need Refrigerant?

Monday, April 16th, 2012

Despite its name, your Springfield heat pump is not designed solely for heating. In fact, the technology in your heat pump was originally designed for air conditioning and is used today in air conditioners, refrigerators and cooling units in vehicles and airplanes. And the entire process relies on refrigerant – a chemical compound that is compressed and expanded to move energy from one environment to another.

 How Refrigerant Makes Heating and Cooling Possible

Springfield HVAC Your heat pump has quite a few components that work with the refrigerant to transfer it from one state to another. The compressor, as the name suggests, compresses the refrigerant to its liquid state. The liquid then runs through the expansion valve to the evaporator coils, where it expands into a gas. Refrigerant evaporates at a much lower temperature than water so it rapidly moves from one state to another, drawing heat from the surrounding environment.

That’s how an air conditioner or your refrigerator cool a space. However, in the case of a heat pump, the process can work in both directions. In cooling mode, your heat pump extracts heat from the air going into your home. In the case of heating mode, the heat pump extracts heat from the outside air. Because the heat is transferred into the refrigerant, it can then be recompressed by the compressor. The heat is then is then released in the condenser coils, where the gas returns to liquid state. A blower then distributes air blown across the condenser coils into your home as heat.

 Troubleshooting the Process

Your Springfield heat pump is a complex piece of machinery, but once you know how it works, you can perform quite a bit of troubleshooting should anything go wrong with the device. For example, if you notice cold air coming from your vents, you can check to make sure it isn’t in cooling mode and that there is enough refrigerant in the device.

Keep in mind that if any service needs to be performed on the heat pump involving refrigerant, you should call Cool It Heating & Air Conditioning due to the volatile nature of the chemical. In most municipalities, you must have a license to distribute or dispose of refrigerant and even if not, it can be dangerous to both you and the environment.

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Signs You Should Replace Your Springfield Heat Pump

Monday, April 2nd, 2012

The decision to replace major equipment can be a difficult one. How do you know when to call it quits on a part of your Springfield heating and cooling system that is as important as the heat pump?

Here are some signs that you should replace your heat pump:

  • Springfield Heat Pump RepairIf your Springfield heat pump is making unusual noises, its probably a sign that something is wrong. You should definitely call a professional to take a look at your heat pump as soon as possible, and, depending on what is causing the the noise, you might need to replace your heat pump.
  • Just like in your car, some repairing some parts of your heat pump are so expensive that it might be cost effective to just replace the whole unit. If your compressor, outdoor coil, or reversing valve break, you should seriously consider a new heat pump as an option. A new heat pump will work more efficiently and need fewer repairs, so it really is a good investment if your current heat pump is constantly breaking down.
  • A malfunctioning heat pump can cause problems with the humidity in your home. This is not a definitive indicator, but if you notice the humidity level rising in your home, you may need a heat pump replacement.
  • If your heat pump starts using much more energy than it used to it can be a sign of a major problem. If your energy bills suddenly rise, check your heat pump to see if you need to have it repaired or replaced.
  • If you notice a cooling imbalance, such as rooms being too warm while others are too cool, your heat pump may be close to breaking.
  • Finally, if your heat pump is ten or more years old, replacing it is a good idea, even if it seems to be working fine. A new model will be much more efficient and chances are that the old one is headed for a major breakdown soon.

Keep in mind that these are not always definitive signs that your heat pump is done for good. Also, some of these may occur in combination. For example, you may have an old heat pump that is making a lot of noise and causing humidity problems.

Consult with a professional for full diagnostics before making the decision to replace any major household equipment. If you have any questions about installing a new heat pump, give Cool It Heating & Air Conditioning a call!

Photo by One Tree Hill Studios: http://www.flickr.com/photos/endora57/54149221/

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Springfield Heat Pump Question: What is the Emergency Setting on My Heat Pump?

Monday, March 26th, 2012

While installing or inspecting your Springfield heat pump, you may have noticed that little switch or button labeled something like “Emergency Mode.” And then, you probably scratched your head and thought, “what is that for?”

Hopefully, the emergency setting is not something you will ever have to use. But, it is there for a reason, so it’s possible you may have to resort to it at some point. In that case, it makes sense to know what it is first.

Springfield Heating Repair- Air Source Heat PumpYour emergency setting is what turns on when your Springfield heat pump starts malfunctioning. The compressor will turn off so the heat pump is no longer transferring heat from the outside into your home as it normally would. Instead, the internal heating element comes on to provide your home with minimal heat until the device is working again. However, since your heat pump is now using electric resistance heating to heat your home, it is using a lot more energy. This can be very expensive, so it is best to have your heat pump fixed as quickly as possible.

That’s what the emergency setting is, but when would you use it?

It’s not a trick question. As the name implies, you only want to use this setting in an emergency. For example, if the heat pump has frozen and isn’t operating, the best course of action is to switch on the emergency mode and call a Springfield heating and air conditioning professsional to repair it.

You would also want to use the emergency mode when recovering from a power outage. Any time a heat pump is without power for more than thirty minutes the refrigerant can cool and get too thick to properly flow through the coils. Turning the pump back on in this situation can damage it, so instead you would use the emergency mode for a while to warm the refrigerant back up, then return to operating the heat pump normally.

The emergency setting is not to be used in place of a supplemental heating system. If there is an uncharacteristic cold snap, and your heat pump can’t keep up, then it makes sense to use the emergency setting to keep the house warm. However, if you live in a colder northern climate, where temperatures routinely drop below 30 degrees in the winter, you should have a supplemental heating system in addition to the heat pump. Using the emergency heat setting regularly is not a good idea.

For more information about maintaining your home’s heat pump, give Cool It Heating & Air Conditioning a call today!

Photo by k_lis: http://www.flickr.com/photos/krzlis/6589545719/

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Common Heat Pump Performance Problems: A Troubleshooting Guide from Broomall

Wednesday, February 29th, 2012

The heat pump in your Broomall home needs to work year round to provide heat and air conditioning. This is why you want to make sure it’s performing as efficiently as possible to save on energy costs and prevent break downs. You should schedule an annual maintenance check-up and inspection with a certified HVAC technician to test the efficiency levels.

However, there are a few common causes of performance issues to be aware of so that you can be sure your heat pump performs at optimal levels. Call Cool It Heating & Air Conditioning if you have questions about heat pump performance issues, or to make an appointment for an annual inspection and professional cleaning.

Airflow Issues

There should always be a certain amount of airflow (measured in cubic feet per minute) in your heat pump to maintain proper efficiency levels. If the airflow is less than 350 cfm per ton, it could increase your energy costs. You should make sure your HVAC contractor checks the airflow whenever your heat pump is inspected. Always keep the coils clean. Sometimes the ducts are not the right size, or the fan speed needs to be increased, but often cleaning the coils will help airflow, which is why it is important to clean and maintain the components of your heat pump. A certified technician will know what methods are best, so if you suspect an airflow problem with your heat pump, call a professional heating technician.

Air Leaks in the Duct System

Inefficient or poorly-designed duct systems may not distribute air properly throughout your home because of potential air leaks. There should always be a balance between the intake and return air in a forced air system, which helps maintain a neutral pressure within the house and increase efficiency. Some contractors argue over how tightly a house should be sealed for this reason, but if your heat pump is losing heat through leaks in the air ducts, this will greatly affect its efficiency.

Improper Refrigerant

Refrigerant leaks are another common cause of low performance levels in heat pumps. Most heat pumps already have refrigerant when they leave the factory and shouldn’t have any issues. Heat pumps that are charged with refrigerant when they are installed can sometimes have the wrong amount of refrigerant. Either too much or too little refrigerant will lower the heat pump’s efficiency and performance levels. Always check the recommended refrigerant amount or ask an HVAC technician before you add refrigerant yourself.

If the heat pump in your Broomall home isn’t working properly, it is also affecting your heating bills. Call Cool It Heating & Air Conditioning today to set up an appointment.

 

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Heat Pump Tips from Aston: When Do You Need a Back Up Heating System?

Wednesday, January 18th, 2012

A backup heating system is sometimes necessary for Aston homeowners who heat their homes with an air-source heat pump. This style of heat pump transfers the heat from the outside air to your home in the winter, and it pushes the warm air outside the home in the summer. Although some systems are efficient enough to work in colder climates, most heat pump systems require a backup heater when temperatures drop below 20° F.

Furnaces are commonly used as a backup heater for air-source heat pumps, especially since the furnace fan blower can help distribute the hot air throughout the home. Although they are more expensive to buy and install, geothermal heat pumps typically do not require a backup heating system. These are also called ground-source or water-source heat pumps since they draw in heat from the ground below the house or from a nearby water source. Because they take advantage of the ground or water temperatures, they are also easier to maintain and have lower operating costs.

Getting the most cost-efficiency from a geothermal heat pump will depend on several factors, such as the size of your property, the temps of the subsoil, and access to local water sources. You will most likely not have to install a backup heating system with a ground-source or water-source heat pump; however, it is important to think about the installation costs and the variables that need to be in place before deciding on this type of heat pump.

Absorption heat pumps use a heat source, such as natural gas or solar-heated water, instead of electricity. Natural gas is typically used for absorption heat pumps, so they are also called gas-fired heat pumps. Depending on the source of the heat, you may or may not need a backup heating system. It’s always best to speak to a professional heating and cooling contractor if you are not sure when it’s necessary for a backup heating system.

Call Cool It Heating and Air Conditioning if you have any questions about a backup heater for your Aston home.

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Swarthmore Heating Repair Tip: Heat Pump Blowing Cold Air

Friday, January 6th, 2012

One of the most impressive things about a heat pump is that it can both cool and heat your Swarthmore home. But, if something goes wrong and your heat pump is suddenly trying to cool your home in the middle of the winter, you have a problem. Here are some possible causes of the issue and what you can do about them.

Defective Reversing Valve

The reversing valve is responsible for changing the flow of refrigerant between seasons so your heat pump can both heat and cool your home. So, if it breaks, you can imagine what happens next – you won’t switch into heating mode and your heat pump will try to air condition your home.

Defective reversing valves are hard to diagnose because the symptoms are largely the same as those of a defective compressor or condenser valve. However, because of how they are installed and where they are located, you will need a Swarthmore professional to inspect this problem no matter what.

Low on Refrigerant

Your heat pump should never run low on refrigerant because it shouldn’t leak, but if it does and the refrigerant gets low or if your device is simply very old, this may be a problem. Low refrigerant means that the device cannot transfer enough heat between the outdoor air and the inside air and the air that gets blown through your ducts by the air handler isn’t heated as much as is necessary to warm your house.

The problem is relatively easy to fix, though you should also have your repairman check for leaks and a possible cause of the refrigerant being low in the first place.

Not Running at All

The final problem is one you should be able to notice quite easily. If the heat pump isn’t working at all but the air handler and blower are working fine, then the device will simply blow cold air from outside or possibly even just recycled cold air from inside. In either case, the heat pump isn’t running to heat the air and therefore, you’re getting whatever temperature it is outside.

This can be caused by a number of problems so it’s important to call for a professional to inspect it immediately.

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Oaks HVAC Contractor Tip: Heat Pump Load Calculation

Wednesday, January 4th, 2012

When purchasing a heat pump in Oaks, the first thing you should do is determine what type of heat pump you want and how big it needs to be to provide ample heating and cooling to your home. If you’re unsure what you need, here are some tips to size a heat pump for your Oaks home’s particular needs.

The Importance of Sizing

Before buying anything, consider the cost of an oversized heat pump. A lot of homeowners opt for the biggest device on the market, but they don’t realize that they’re paying more than necessary for their device. An oversized device cycles on and off more often than is necessary and wears down much faster, resulting in an increased electric bill and faster wear on the device. It’s not good for your heat pump or your wallet.

How to Size

To correctly size a heat pump, the first step is to perform a load calculation. This is done by measuring the total volume of the rooms being heated (in cubic meters) and then determining the heating factor based on the type of insulation used.

There are different measurements depending on the type and R-rating of your insulation. For example, a single external wall without any additional insulation has a heating factor of 15. The number of external walls, the insulation in those walls and/or the ceiling and the rating of the insulation will determine the total heating factor for the room.

You will then divide the room volume by the heating factor to determine the number of KW (converted to BTUs) needed to heat that particular room.

Professional Sizing

The reason it is so important to call an Oaks heating contractor is that certain things, like poorly insulated windows, cracks in the foundation, leaks in the ducts and other issues can have an impact on the overall heating factor measurement. Additionally, the type of heat pump you choose must be effective when connected to an air handler for your entire home. A professional can make these measurements and ensure the right sized device is selected.

If you’re unsure about anything related to sizing and selecting a new heat pump for your home, call a professional in. They will perform a full load calculation and present your options for a new heat pump based on those calculations.

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How to Maintain High Efficiency Filters to Reduce Stress on Your West Chester Heat Pump

Monday, January 2nd, 2012

The filter on your heat pump is an integral part of your West Chester home’s comfort system. Without that filter, the device will quickly be subjected to an influx of debris and contaminants that can get into the machinery and the air being filtered into your home. As a result, you need to make sure you properly maintain the filters to reduce stress on your heat pump.

Change Your Filters

High efficiency filters are designed to remove as much of the airborne contaminants in the air as possible. This is fantastic for keeping your indoor air clean. But if you don’t properly maintain the filter, air quality can worsen and your heat pump is put under unnecessary stress. Specifically, the extremely tight knit filter, designed to stop nearly anything from getting through, gets clogged.

Now your heat pump is forced to work much harder to draw the air it needs from outside and heat or cool your West Chester home. On top of that, the filter is filled with contaminants that can start to leak back into the air supply, actually making your indoor air quality worse than it would be otherwise. That’s why it is so important to clean your filters on a regular basis (for permanent filters) and replace them if they are one time use.

Recommended Filters

You have options as to which types of filters you use for your heat pump. Filters come in multiple options, from super high MERV rated filters that trap up to 99% of all contaminants as small as 0.3 microns.

Electrostatic filters are especially efficient because they extract contaminants of all types – from dust and mold to smoke and gas fumes. A good filtration system should effectively remove anything from the air without needing replacement too often.

Permanent filters tend to offer the best protection against airborne contaminants and generally need to be cleaned once a month. HEPA filters are often permanent and while each filter is different, these are often extremely effective at minimizing contaminants in the air without putting stress on your heat pump.

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Springfield HVAC Tip: What to Do About an Ice and Snow Covered Heat Pump

Wednesday, December 14th, 2011

It’s very common for heat pumps to ice over in the winter time in Springfield. It can be due to freezing temperatures and icing outside or it could be due to constant running of the heat pump or excess moisture on the coils. However, while a bit of ice on the heat pump is relatively normal, the entire unit should never be covered in ice – such a thing is not only hard on the machinery; it can result in no heat for your home.

How to Handle Ice and Snow on the Heat Pump

Should your heat pump become covered in ice or snow in the winter time, there are a few things you can do and some things you should not do. First, check to make sure the problem isn’t related to a broken defrost cycle timer. The heat pump should go into a defrost cycle every 30-90 minutes to keep excess ice from building up. If this doesn’t happen, it should be inspected for a thermostat or sensor problem.

To actually remove the ice from the unit, never use a sharp object to pick the ice clear. You can easily damage the coils or another part of the unit and leave it permanently broken. The best way to remove ice from your heat pump is to rinse it off with a hose – even cold water will remove ice. Just be sure the defrost cycle is ready to come back on so the water used to rinse away the ice doesn’t freeze.

Remember to check your emergency heating source and make sure it is switched on while this is happening. Your heat pump likely won’t work properly while iced over and if it is left in the on position, excess stress on the device will cause damage.

To avoid this kind of damage, turn off the heat pump and turn on your emergency heating source, then clear away the ice and check the defrost timer. If everything works properly, turn the heat pump back on, but if you find any problems, call a heating contractor to do a more thorough inspection of the device before you use it again.

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